ENGLISH
The Towers of Bologna are a group of medieval structures in Bologna, Italy. The two most prominent ones, also called the Two Towers, are the landmark of the city.
Between the 12th and the 13th century, the number of towers in the city was very high, possibly up to 180.
The reasons for the construction of so many towers are not clear. One hypothesis is that the richest families used them for offensive/defensive purposes during the period of the Investiture Controversy.
During the 13th century, many towers were taken down or demolished, and others simply collapsed. Many towers have subsequently been utilized in one way or the other: as prison, city tower, shop or residential building.
Of the numerous towers originally present, fewer than twenty can still be seen today. Among the remaining ones in the picture you can see, on the left the Azzoguidi Tower, also called Altabella (with a height of 61 m), and on the right the Prendiparte Tower, called Coronata (60 m)